calcarine sulcus
- noun
- /ˈkæl.kəˌraɪn ˈsʌl.kəs/
- Specialized
- The calcarine sulcus is essential for processing visual information from the eyes.
Examples
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Brain scans show clear activity in the calcarine sulcus when people view images.
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So this is a piece of calcarine sulcus or primary visual cortex, right?
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Researchers studied the calcarine sulcus to understand its role in visual perception.
Synonyms
A deep groove on the inner back part of the brain that holds the main area for sight
Surface Forms
Morphology
The noun 'sulcus' clearly means a groove, and the adjective+noun composition indicates a specific named groove, so the structure is compositional. However, 'calcarine' is a specialist anatomical label with no clear, non-technical meaning for a B1 learner, so identifying the precise occipital/visual-cortex location requires domain knowledge rather than simple word-combination inference.
Etymology
Calcarine sulcus comes from Latin: calcarine from 'calcar' meaning 'spur' and sulcus meaning 'groove', so the name paints a picture of a spur-like groove. This deep groove is on the inside back of the brain where the main area for 'vision' sits, which is why the term refers to the groove linked to 'vision'.